JPH0136826Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a sheet film loading/retrieving device such as X-ray film, which has an improved sheet film conveying method. be.

[Prior art]

Figure 1 shows the actual application proposed by the applicant in 1983.
158186 is a sectional view of a sheet film loading/recovering device. First, this sheet film loading/recovering device will be explained.

The dark box housing 3 is internally partitioned into three upper, middle, and lower chambers by two light-shielding walls 1 and 2, and the lower chamber is further partitioned by light-shielding walls 4a and 4b.

The cassette A can be inserted through an insertion opening 6 of an apron 5 on the front surface of the housing 3. The insertion opening 6 has a light shielding wall 7 which is locked in the closed position by a locking mechanism (not shown) during operation of the device.

The lower chamber 8a of the housing 3 is divided into three parts,
8b and 8c include a film supply section 9a, which will be described later.
9b, 9c, respectively, and a magazine mounting portion 10 of the film supply portions 9a, 9b, 9c.
Supply magazines of any size Ba, Bb, Bc with new film X ₁ in a, 10b, 10c
Attach.

Figure 2 shows a perspective view of the supply magazine, and the supply magazines Ba, Bb, and Bc have protrusions C that have different positions depending on the size of the film inside.
is attached.

In Figure 1, the protrusion C of the supply magazine
, press the size detection micro switch S ₁ to determine the film size. Open shutter 11 of the supply magazine and press micro switch S _2.
is detected, one sheet film is sucked from the supply magazine by a conventional suction cup operation and inserted into the rollers 12, and the film _X1 is pinched by the rollers 12 and conveyed. micro switch
When S ₃ detects a sheet film, the conveyance is stopped and the film enters a standby state.

On the other hand, the upper chamber 13 of the housing 3 is provided with a magazine mount 14 and a film storage section 15 following this, and a receive magazine D is mounted in the film storage section 15.

FIG. 3 shows a top view of the operating mechanism of the cassette. The guide members 24, 24 are biased inwardly by a tension spring 25, and in order to be able to slide evenly outward against the tension spring 25, a shaft 26 inserted into fixed bearings 27, 27 is used. , 26, a link 3 connected to a movable bearing 29 inserted into a fixed shaft 28
0 and 30 are provided.

A bracket 31 is attached to the upper end of the fixed shaft 28,
The upper limit movement of the movable bearing 29 is regulated. Therefore, since the guide members 24, 24 are urged inward by the tension spring 25, the movable bearing 29 abuts against the bracket 31 of the fixed shaft 28 and maintains a preset minimum width.

When the cassette A is inserted along the upper inclined surfaces 24a, 24a of the guide members 24, 24, the guide members 24, 24 expand to the width of the cassette A against the tension spring 25.

In FIG. 3, 37 is an idle pulley, and when the motor 33 is driven, the roller 32 rotates via the belt 35. When cassette A is inserted into the insertion slot 6, the cassette detection micro switch _S4 detects the cassette and drives the motor 33. When both sides of cassette A reach the rollers 32, the cassette A is further conveyed to the back by the rollers 32. be done.

The guide members 24, 24 are provided with stoppers 24d, 24d for locking the front ends of the cassettes A, and the positions closest to the stoppers 24d, 24d are for locking the front ends of the cassettes A.
A micro switch _S5 is installed to detect the front end of the

When the microswitch _S5 detects the front end of the cassette A, it locks the light shielding lid 7 and stops driving the transport motor 33 of the cassette A.

Further, between the guide members 24, 24, there is a micro switch _S6 (first
(see figure) are arranged in parallel in the insertion direction of cassette A according to the size of various cassettes, and the size of cassette A is determined based on the number of cassettes A detected by micro switch _S6 .

Corresponding to the detected size of cassette A, the film in the corresponding supply magazine is conveyed along the conveyance path 59, and the film is transferred to the micro switch S.
11 stops at the detected position and removes the cassette A.
Waits for the lid to be opened and the photographed sheet film to be taken out.

Directly above the guide members 24, 24, there is a lid opening mechanism 38.
This lid opening mechanism 38 is provided with a lever 40 that rotates around a fixed shaft 39, and a magnet 42 is provided with a shaft 41 on the opposite side of the shaft 39.

This magnet 42 is placed in such a positional relationship that when rotated about the shaft 39, it comes into contact with an iron plate 43 attached to the outside of the lid 18 of the cassette A at the position where the cassette A comes into contact with the stoppers 24d, 24d.

One end of the link 45 is attached to the lever 40 via the shaft 44 approximately in the center of the lever 40, and the link 45
The other end is attached via a shaft 46 to a portion offset from the center of a disk 47. Note that the rotation axis 4 of the disc 47
8 is coaxial with a fixed motor 49.

When the cassette A is inserted through the insertion port 6, the micro switch _S6 detects the rear end of the cassette A and locks the light-shielding lid 7 in the closed position. Next, the lid opening mechanism 38
The motor 49 is driven to rotate the disk 47 once. Therefore, the magnet 42 attracts the iron plate 43 of the cassette A through the link 45 and the lever 40 to forcibly open the light-shielding lid 18.

Next, the suction cup mechanism 50 operates in a conventional manner, and the suction cup 51 suctions, for example, the photographed sheet film X ₂ in the cassette A and inserts it between the rollers 52. The upper roller group 53 is a sheet film
Transport X ₂ upwards and insert micro switch S ₇ on the way.
detects the sheet film X ₂ , the shutter 55 of the opening 54 in the light-shielding wall 1 opens,
Opening 5 in the light-shielding wall 2 in which the supply magazine B of the same size as the above cassette size is installed.
Shutter 57 of No. 6 is opened, and a waiting sheet film of the same size as cassette A is conveyed by rotation of roller 58 and roller group 59.

By repeating the above cassette operation, the received sheet film will accumulate in the receive magazine D, and when a considerable amount has been accumulated, the receive magazine D will be removed from the main body of the loading/recovering device and the film attached to the processor will be automatically loaded. It can be attached to a transport device for automatic processing. Of course, it is also possible to directly convey the image to the processor without using a receive magazine.

When cassette A is opened and the photographed sheet film in cassette A is taken out, the sheet film that was waiting at the position of the micro switch S11 is carried into cassette A, but the lid opening operation of cassette A If the lid does not open even after repeating the steps above, or if the sheet film in cassette A is not ejected even if the lid of cassette A is opened, remove cassette A from the sheet film loading/recovery device, and then remove the cassette from the darkroom. Take out the photographed sheet film from A, process it, insert another empty cassette of the same size into the sheet film loading/recovery device, and insert the micro switch S1 into this cassette.
Either load a new sheet film that was waiting in position 1, or if the photographed sheet film is not taken out even when the cassette is opened, feed a new sheet film into this cassette and then remove it from the cassette. He then took out the film and processed it separately in the darkroom, separating the sheet film that had already been photographed from the new film. If the cassette does not open or the photographed sheet film in the cassette is not transported, processing of the film waiting at the position of micro switch S11 that matches cassette A is complicated and time-consuming. , new sheet film is often wasted. Moreover, since it is time-consuming, the processing time becomes long.

[Purpose of invention]

The present invention is a sheet film loading/retrieval device that simplifies the loading and retrieval of sheet films, and even in the unlikely event that cassette A does not open its lid or that a photographed film cannot be taken out from cassette A, such an accident can be prevented. The sheet film loading/unloading system has been improved to prevent work from being stagnated due to the opening and closing of the light-shielding lid, and to prevent unused film waiting from being wasted due to exposure due to opening and closing of the light-shielding lid. The purpose is to provide a collection device.

[Structure of the idea]

The present invention aims to achieve the above-mentioned object, and includes a sheet transport means having a take-out means for taking out sheet films in a cassette, and a transport path for transporting unused sheet films from a supply magazine into the cassette. The film loading/recovering device includes a film waiting mechanism for waiting the unused sheet film midway along the transport path and immediately before loading into the cassette, and loading the sheet film into the cassette. a determining means for determining whether it is possible to load the sheet film into the cassette; and when the determining means determines that it is impossible to load the sheet film into the cassette, the sheet film waiting in the standby mechanism is transported in the direction of the supply magazine. This is achieved by a sheet film loading/recovering device having a control means for controlling the conveying means.

〔Example〕

FIG. 4 shows a sectional view of the sheet film loading/recovering device according to the present invention. Supply magazines Ba, Bb, and Bc containing sheet films of different sizes are installed at the bottom of the main body of the device. As shown in FIGS. 5a and 5b, there are conveyor rollers 58a, 58b, 58c and micro switches S3a, S3b, S3c at the back of the supply magazine mounting section of the main body, and the sheets sucked from each supply magazine and conveyed by the rollers. The film is stopped and waiting at the positions of the respective microswitches S3a, S3b, and S3c. The micro switches S3a, S3b, S
Conveying rollers 58a, 58b, 58 are located ahead of 3c.
c, and further ahead there are guide plates 60a, 60b, 60c for feeding the sheet film upward.
There are transport rollers 70a, 70b, and 70c close to each guide plate. Furthermore, guide plate 6
0a has a shaft 61a as a supporting shaft, and the guide plate 60b can swing around the shaft 61b as a supporting shaft.

Next, this operation will be explained. When cassette A is inserted into the main body of the apparatus, a detector detects the film size of cassette A, and among the sheet films waiting at each of the micro switches S3a, S3b, and S3c, a sheet film of the same size is transported to the main body of the apparatus. It is transported through the road and waits at the micro switch S11. When the cassette A is opened, the photographed sheet film in the cassette A is suctioned and carried out, and is conveyed to the receive magazine 80 located at the upper part by a conveyance roller.

When the detection member S12 detects that cassette A is not opened despite the opening operation, or when the film presence/absence detection member S13 detects that the photographed sheet film in the cassette is not taken out,
After the film that was waiting at S3a (or S3b, S3c) is returned to the magazine, the sheet film that is waiting at the micro switch S11 is returned to the unloading section of the supply magazine that has been unloaded by going backwards through the passage. Micro switch S3a
(or S3b, S3c) and wait. To explain the details, as an example, if the sheet film waiting at the micro switch S11 is supplied from the supply magazine Ba, the control unit remembers this and the guide plate 60a is moved as shown in FIG. As shown in a, the sheet film is rotated clockwise around the shaft 61a, and the conveying roller 70 rotates in the opposite direction, and the sheet film that has been traveling in the opposite direction is turned to the left as shown by the arrow by the guide plate 60a, and is moved to the micro switch. It returns to the position S3a, waits there, and returns to the state before the cassette insertion. In the case of FIG. 5b, the sheet film waiting at the micro switch S11 is supplied from the supply magazine Bc, so the guide plates 60a and 60b are connected to the shafts 61a and 6, respectively.
1b as a fulcrum to open the straight path, and after returning the film waiting at S3c to the magazine, the conveying roller 70 rotates in the opposite direction, and the sheet film descends to the bottom, and the sheet film is moved to the micro switch S3c. Return to the location, wait, and return to the state before inserting the cassette. FIG. 6 shows this flowchart.

In the above embodiment, when the cassette is not opened or the photographed film in the cassette is not taken out, the micro switch S11 is used to move the waiting new film backwards. If you want to empty the film and take it out of the device, you can press a button or the like provided outside the device to move the new film in the waiting direction backwards.

[Effect of idea]

According to this invention, the cassette may not open,
Or, if the photographed sheet film in the cassette cannot be ejected even after the cassette is opened, the new film that is waiting halfway is returned to a position near the supply magazine, and the new film is developed. It is possible to eliminate waste caused by overexposure and exposure, and to speed up the processing cycle time. It also eliminates the troublesome work of taking out and processing new film in the darkroom.

[Brief explanation of the drawing]

FIG. 1 shows a sectional view of a sheet film loading/recovering device. FIG. 2 shows a perspective view of the supply magazine. FIG. 3 shows a top view of the operating mechanism of the cassette. FIG. 4 shows a sectional view of a sheet film loading/recovering device according to the present invention. FIGS. 5a and 5b show a partial view of the conveyance path from the supply magazine, and FIG. 6 shows this flowchart. Ba, Bb, Bc...Supply magazine, A...Cassette, S3a, S3b, S3c...Micro switch, S11...Micro switch, 58a,
58b, 58c... Conveyance roller, 60a, 60
b, 60c...Guide plate, 61a, 61b...
Shaft, 70a, 70b, 70c... Conveyance roller, S
12...Lid opening detection member, S13...Film presence/absence detection member.

Claims (1)

[Scope of Claim for Utility Model Registration] Sheet film loading and unloading means comprising a take-out means for taking out the sheet film in the cassette, and a transport means having a transport path for transporting unused sheet film from the supply magazine into the cassette.
The collection device includes a film standby mechanism that waits for the unused sheet film midway along the transport path and immediately before loading into the cassette; a discriminating means for discriminating; and when the discriminating means determines that sheet film cannot be loaded into the cassette, the conveying means is configured to convey the sheet film waiting in the standby mechanism toward the supply magazine. A sheet film loading/recovering device having a control means for controlling the sheet film.